*{
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}
body{
    overflow-x: hidden;
    overflow-y: auto;
}
.bgc{
        position: absolute;
        background: linear-gradient(91deg,#f1eefc,#9dc6ff 70%,#a5bcff);
        width: 1900px;
        height: 1200px;
}
.container{/*整个box*/
    position:relative;
    width:900px;
    height: 1060px;
    background-image: url(./image/Background.png);
    margin: 100px auto;
    background-repeat: no-repeat;
    background-size: 100% 100%;
    animation:act 5s linear infinite;
}
@keyframes act{/*试一下放缩动画*/
    0%,100%{
        transform: scale(1);
    }
    50%{
        transform: scale(1.2);
    }
}
span{/*流星效果*/
    width: 6px;
    position: absolute;
    height: 6px;
    background: #fff;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    box-shadow: 0 0 0 6px rgb(255, 255, 255,0.1),0 0 0 8px rgba(255,255,255,0.1),
    0 0 20px rgba(255,255,255,1);
    animation:animate 3s linear infinite;
}
span::before{
    position: absolute;
    content: "";
    top: 50%;
    width: 400px;
    height: 1px;
    background:linear-gradient(90deg,#fff,transparent);
    transform: translateY(-50%);
}
@keyframes animate{/*流星动画*/
    
    0%
    {
        transform: rotate(315deg) translateX(0);
        opacity: 1;
    }
    70%{
        opacity: 1;
    }
    100%
    {
        transform: rotate(315deg) translateX(-1000px);
        opacity: 0;
    }
}
span:nth-child(1){
    top: 0;
    right: 0px;
    left: initial;
    animation-duration: 1s;
    animation-delay: 0;
}
span:nth-child(2){
    top: 0;
    right: 80px;
    left: initial;
    animation-duration: 3s;
}

span:nth-child(3){
    top: 80px;
    right: 0;
    left: initial;
    animation-duration: 2s;
}
span:nth-child(4){
    top: 0px;
    right: 180px;
    left: initial;
    animation-duration: 3s;
}
span:nth-child(5){
    top: 30px;
    right: 180px;
    left: initial;
    animation-duration: 3.5s;
}
span:nth-child(6){
    top: 30px;
    left: 60px;
    animation-duration: 4s;
}
span:nth-child(7){
    top: 30px;
    left: 160px;
    animation-duration: 2s;
}
span:nth-child(8){
    top: 40px;
    left: 240px;
    animation-duration: 1s;
}
span:nth-child(9){
    top: 40px;
    left: 300px;
    animation-duration: 4s;
}
span:nth-child(10){
    top: 40px;
    left: 400px;
    animation-duration: 3s;
}
span:nth-child(11){
    top: 40px;
    left: 500px;
    animation-duration: 6s;
}
.header{/*头部*/
    width: 100%;
    height: 80px;
    display: flex;
    justify-content:space-between;
}
.header-left{
    margin-left: 20px;
    margin-top: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: 0 0 1px 1px #fff;
    color: #d0e9ec ;
    text-align: center;
    line-height: 50px;
    font-size: 40px;
}
.header-center{
    position: relative;
    height: 50px;
    margin-top: 30px;
    font-family:Helvetica, 'Hiragino Sans GB', 'Microsoft Yahei', '微软雅黑', Arial, sans-serif;
    font-size: 40px;
    font-weight: 500;
    color: #d0e9ec;
}
.botact::before{/*下划线样式*/
    content: "";
    position: absolute;
    bottom: -5px;
    width: 0;
    height: 3px;
    background-color:#d0e9ec ;
    transition: 0.5s;
}
.header-center:hover:before{/*悬停下划线*/
    width: 143px;
}
.header-right{
    margin-right: 20px;
    margin-top: 30px;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    box-shadow: 0 0 1px 1px #fff;
    color: #d0e9ec ;
    text-align: center;
    line-height: 50px;
    font-size: 40px;
}
.section{/*图片区域*/
    width: 100%;
    height: 200px;
    display: flex;
    justify-content: center;
    align-items: center;
}
.photo{
    width: 150px;
    height: 150px;
    border-radius: 50%;
    box-shadow: 0 0 1px 1px #d0e9ec  ;
    color: #d0e9ec ; 
    text-align: center;  
}
.bb{
    font-family: 'Times New Roman', Times, serif;
    font-size: 120px;
}
p{
    margin-top: -30px;
}
.form{
    display: flex;
    margin: 50px auto 0;
    width: 500px;
    height: 500px;
    right: 100px;
}
h2{
    font-family: 'Trebuchet MS', 'Lucida Sans Unicode', 'Lucida Grande', 'Lucida Sans', Arial, sans-serif;
    font-size: 40px;
    color: #d0e9ec;
}
.inputbox{
    width: 120%;
    margin-top: 20px;
}
.form .inputbox input{
    width: 100%;
    padding: 10px 20px;
    background-color:rgba(255, 255, 255,0);
    outline: none;
    border: none ;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    border-radius: 30px;

}
.form .inputbox input:hover{/*边框阴影效果*/
    width: 100%;
    padding: 10px 20px;
    background-color:rgba(255, 255, 255,0);
    box-shadow: 0 5px 15px rgba(0,0,0,1);
}
.form .signup input[type="submit"]{/*按钮样式，b站学习*/
    background:rgba(231, 229, 229, 0.99) ;
    width:460px;
    margin-left: 30px;
    margin-top:70px ;
    padding: 10px 50px;
    border-radius: 50px;
    color:#817eaa ;
    font-weight: 700;
    font-family: Arial, Helvetica, sans-serif;
    font-size: 40px;
}
.footer{
    margin-top: 40px;
    text-align: center;
    color:#fcfcfd;
}
.footer a{
    color:#46cbad;
    font-weight: 800px;
}